140491367 has 4 divisors (see below), whose sum is σ = 140591520. Its totient is φ = 140391216.

The previous prime is 140491313. The next prime is 140491369. The reversal of 140491367 is 763194041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140491367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140491369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47942 + ... + 50787.

It is an arithmetic number, because the mean of its divisors is an integer number (35147880).

Almost surely, 2^140491367 is an apocalyptic number.

140491367 is a deficient number, since it is larger than the sum of its proper divisors (100153).

140491367 is an equidigital number, since it uses as much as digits as its factorization.

140491367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100152.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 140491367 is about 11852.9054244097. The cubic root of 140491367 is about 519.8561818744.

The spelling of 140491367 in words is "one hundred forty million, four hundred ninety-one thousand, three hundred sixty-seven".